diff options
| -rw-r--r-- | drivers/gpu/drm/drm_of.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 59d368ea006b..9d90cd75c457 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -249,6 +249,21 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, if (panel) *panel = NULL; + /** + * Devices can also be child nodes when we also control that device + * through the upstream device (ie, MIPI-DCS for a MIPI-DSI device). + * + * Lookup for a child node of the given parent that isn't either port + * or ports. + */ + for_each_available_child_of_node(np, remote) { + if (of_node_name_eq(remote, "port") || + of_node_name_eq(remote, "ports")) + continue; + + goto of_find_panel_or_bridge; + } + /* * of_graph_get_remote_node() produces a noisy error message if port * node isn't found and the absence of the port is a legit case here, @@ -259,6 +274,8 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, return -ENODEV; remote = of_graph_get_remote_node(np, port, endpoint); + +of_find_panel_or_bridge: if (!remote) return -ENODEV; |